set(CMAKE_CXX_COMPILER "g++")
set(CMAKE_C_COMPILER "gcc")
set(CMAKE_CXX_FLAGS_RELEASE "-O2")
set(CMAKE_CXX_FLAGS_DEBUG "-O0 -g3")
set(CMAKE_CXX_FLAGS "-fPIC -m64 -std=c++11 -Wall -Wextra")
set(CMAKE_BUILD_TYPE Debug)
